2006
DOI: 10.1007/s10327-006-0299-3
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Tomato early blight (Alternaria solani): the pathogen, genetics, and breeding for resistance

Abstract: Alternaria solani causes diseases on foliage (early blight), basal stems of seedlings (collar rot), stems of adult plants (stem lesions), and fruits (fruit rot) of tomato. Early blight is the most destructive of these diseases and hence receives considerable attention in breeding. For over 60 years, breeding for early blight resistance has been practiced, but the development of cultivars with high levels of resistance has been hampered by the lack of sources of strong resistance in the cultivated tomato and by… Show more

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Cited by 228 publications
(169 citation statements)
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References 62 publications
(86 reference statements)
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“…The increase in humidity due to the rainy season facilitated the development of early blight, this may be related to the available water on the leaf surface which may have promoted the dispersal and germination of spores (ROTEM, 1994;CHAERANI;VOORRIPS, 2006). These climatic conditions, as mentioned, are favorable to the development of the disease and may occur in several secondary cycles throughout the cycle, leading to the emergence of epidemics.…”
Section: Resultsmentioning
confidence: 99%
“…The increase in humidity due to the rainy season facilitated the development of early blight, this may be related to the available water on the leaf surface which may have promoted the dispersal and germination of spores (ROTEM, 1994;CHAERANI;VOORRIPS, 2006). These climatic conditions, as mentioned, are favorable to the development of the disease and may occur in several secondary cycles throughout the cycle, leading to the emergence of epidemics.…”
Section: Resultsmentioning
confidence: 99%
“…Alternaria solani Sorauer, the casual organism of early blight of potato (Solanum tuberosum) and tomato (Lycopersicon esculentum) is a common and frequently serious pathogen of these food crops in most parts of the world where these crops are important (Mathur and Shekhawat, 1986;Agrios, 2005;Chaerani andvoorrips, 2006 andMajeed et al, 2014). Its destructive effect on crops has been recorded from Mexico to Canada in North America, Java, Bermuda, Eastern United States, Pennsylvania and Africa (Keinath et al, 1996;Poya, 1996, Agrios, 2005Olanya et al, 2009;whiting et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…Infection by A. solani is characterized by the appearance of dark or almost black, more or less circular dead areas or spots upon the leaflets, which show a concentric series of rings giving the lesion a target board effect. Adjacent spots subsequently enlarge and coalesce to cover much surface of the leaf forming more extended dead areas and seriously infected plants suffer premature defoliation (Abdalla et al, 2014;Wiggins, 2014;Chaerani and Voorrips, 2006;Pandey, 2003). According to these authors, the disease causes large economic loss to farmers especially when the season begins with abundant moisture or frequent rains followed by warm and dry weather which are unfavorable for the host and help in rapid disease development.…”
Section: Introductionmentioning
confidence: 99%
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